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WM8150SCD/R, WM8152, WM8152CDS

Table of contents:
Info of WM8150SCD/R
Info of WM8152
Info of WM8152CDS

WM8150SCD/R, WM8152, WM8152CDS Selling Leads, Datasheet

MFG:WM() Package Cooled:SSOP20 D/C:08+

WM8150SCD/R, WM8152, WM8152CDS Datasheet download

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Part Number: WM8150SCD/R

MFG: WM()

Package Cooled: SSOP20

D/C: 08+

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WM8152 General Description

The WM8152 is a 16-bit analogue front end/digitiser IC which processes and digitises the analogue output signals from CCD sensors or Contact Image Sensors (CIS) at pixel sample rates of up to 12MSPS.

The device includes a complete analogue signal processing channel containing Reset Level Clamping, Correlated Double Sampling, Programmable Gain and Offset adjust functions. Internal multiplexers allow fast switching of offset and gain for line-by-line colour processing. The output from this channel is time multiplexed into a high-speed 16-bit Analogue to Digital Converter. The digital output data is available in 4-bit wide multiplexed format.

An internal 4-bit DAC is supplied for internal reference level generation. This may be used to reference CIS signals or during Reset Level Clamping to clamp CCD signals. An external reference level may also be supplied. ADC references are generated internally, ensuring optimum performance from the device.

Using an analogue supply voltage of 5V, a digital core voltage of 5V, and a digital interface supply of either 5V or 3.3V, the WM8152 typically only consumes 225mW when operating from a single 5V supply.

WM8152 Maximum Ratings

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device.

Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30 / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30 / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30 / 60% Relative Humidity. Supplied in moisture barrier bag.

The Moisture Sensitivity Level for each package type is specified in Ordering Information.

CONDITION	MIN	MAX
Analogue supply voltage: AVDD	GND - 0.3V	GND + 7V
Digital core voltage: DVDD1	GND - 0.3V	GND + 7V
Digital IO supply voltage: DVDD2	GND - 0.3V	GND + 7V
Digital ground: DGND	GND - 0.3V	GND + 0.3V
Analogue grounds: AGND1 − 2	GND - 0.3V	GND + 0.3V
Digital inputs, digital outputs and digital I/O pins	GND - 0.3V	DVDD2 + 0.3V
Analogue input (VINP)	GND - 0.3V	AVDD + 0.3V
Other pins	GND - 0.3V	AVDD + 0.3V
Operating temperature range: T_A	0	+70°C
Storage temperature after soldering	-65	+150
Package body temperature (soldering, 10 seconds)		+260
Package body temperature (soldering, 2 minutes)		+183

Notes:
1. GND denotes the voltage of any ground pin.
2. AGND1, AGND2 and DGND pins are intended to be operated at the same potential.
Differential voltages between these pins will degrade performance.

WM8152 Features

• 16-bit ADC
• 12MSPS conversion rate
• Low power - 225mW typical
• 5V single supply or 5V/3.3V dual supply operation
• Single channel operation
• Correlated double sampling
• Programmable gain (8-bit resolution)
• Programmable offset adjust (8-bit resolution)
• Programmable clamp voltage
• 4-bit wide multiplexed data output format
• Internally generated voltage references
• 20-pin SSOP package
• Serial control interface

WM8152 Typical Application

• Flatbed and sheetfeed scanners
• USB compatible scanners
• Multi-function peripherals
• High-performance CCD sensor interfac

WM8152 Connection Diagram

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